How do you make a field for wild plants and what is it that prevents them from spawning somewhere?
I have a 11x11 herb field that does not seem to work for wild plants at all. When I do the search, nothing spawns and it just tells me that nothing was found. If I search one tile off, nothing spawns on the field but just outside it (flattened stone paving). When I try paving the field with high quality, nothing spawns on that paving, nor the rest of the field.
Also tried digging out one tile and searching and it seems to work until I try digging another time from that and putting the soil back.
EDIT: is it restricted to low quality tiles only?